Knee rest



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W/r/VESSES Dec. 19, 1922.

J. G. LAYCDCK.

KNEE REST.

FILED JAN. 6. 1922.

2 SHEETS-SHEET 2.

3o 'n @La/Coah, 5V I hpatented ec. 19, 1922i.

TTED STATES 1,439,006 PATENT OFFICE.

JOHN GILBERT LAYCOCK, 0F RUSSELLVILLE, OHIO, ASSIGNOR 0F ONE-HALF TO LAUREL MCCORMICK, OF RUSSELLVILLE, OHIO.

KNEE REST.

Application led January 6, 1922. Serial No. 527,360.

To all whom it may concern:

Be it known that I, JOHN G. LAT/Coon, a citizen of the United States, and resident of Russellville, in the county of Brown and State of- Ohio, have invented certain new and usefull Improvements in Knee Rests, of which the following is a specifi,- cation.

This invention relates to hospital beds*V and is an improvement over the construction illustrated in United States Patent No. 1,045,571.

Animportant object is to provide a bed having a knee rest or limb support which is operated simultaneously with the "elevation of the 'back rest.

Further the invention is provided with means whereby thelimb rest or pivoted spring section may be raised or lowered independently of the back rest, whereby the bed is capable of a variety of adjustments.

A further object is to provide a bed having back and limb rests which may be operated entirely by one person with a minimum of effort and inconvenience.

A further object is to provide a bed of the lclass described which is of higily simplilied construction, efficient in use and chea to manufacture.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawings forming a part of this application and in which like numerals are employed to designate like parts throughout the same,

b Figure 1 is a vertical sectional view of the ed, i

Figure 2 is a perspective of a lifting memi ber for the limb rest,

As in the case of the aforesaid patent, the spring is provided with a hinged section 10 which constitutes a back rest adapted to be supported in an inclined position so that 'a personpccupying the bed may be supported in an inclined position.

vscrews 13 having sprocket wheels 14-` mounted thereon and connected by a sprocket chain so that the two feed screws 13 are caused to operate together. One of the feed screws is providedwith a crank 16 by means of which the same may be manually rotated by the operator for raising or lowering the back rest.

A limb rest 18 is l,provided with a pair i of spaced parallel side rails having their rear end portions extended angularly and hinged to the side rails of the Spring or -bed as indicated at 20. The limb rest 18 isl of course provided with a spring and when the limb rest is elevated it provides a convenient support for the limbs so that the patient may comfortably recline in the bed when the back rest 10 is raised. It will be readily; seen that the raising of the limb rest 18 will hold the patient in position and prevent the patient from sliding toward the foot of the bed. l

The limb rest 18 is vconnected tothe cross head by means of a connecting rod or member 22 having its forward portion forked to provide arms 23. The terminal portions of the arms 23 are provided with pairs of aper v turedv ears 24 pivoted to the lowerpo-rtions of elevating levers 25. The elevating levers 25 of which there are two are pivoted intermediate their ends to the side rails of theJ bed as indicated at 26 and have their upper portions formed with rollers 28 which cont et with the side members of the liinbr rest 8. a

It isI thus seen that when the connecting member or rod 22 is advanced by the o-peraf tion of the crank 16 the rollers 28 will move the limb rest. On the other hand when the rod 22 is retracted the levers 25 will be lowered so that the limb .rest will assume a substantially horizontal position.

rlllhe rod 22 is connected'to the cross head 105 lnpivvairdly and rearwardly thereby yraising 12 by-means of a pivoted latch 29 adapted to engage the notches 3 0 in the rod 22. When it is desired to lower the limb rest 18 independently of the bac-k rest it is merel necessary to pull releasing link or ro extended out to one side of the bed and having a finger loop 33. By thus pulling on the releasing rod 32 the latch 29 is withdrawn from locking engagement with the rod 22 so that the limb rest may immediately assume a. horizontal position.

The limb rest may be elevated independently of the back rest by means of an auxiliary lifting rod 36 having its forward p0rtion arranged to provide a pair of arms 37 the terminal portions of which are formed with hooks 38 adapted for engaging attaching eyes 39 carried by the cross piece of a U-shaped bracket 40. The depending U- shaped bracket 40 is firmly secured tothe limb rest adjacent the pivot elements of the same and braced by mea-ns of brackets 41. The spaced arms 37 contact with a U-shaped lifting member 43 connected at its upper' end to the sides of the limb rest as indicated at 44. The rear portion of the rod 36 is connected to a chain or other flexible element 46 which may be adjustably connected to a pin 47 carried by the bed frame. When the chain 46 isgpulled upwardly the limb rest 18 is elevated to the desired extent and the chain 46 may be adjustably secured tothe pin 47.

To secure the spring of the bed securely in posit-ion I have provided a plurality of anchoring springs 52 connected at their uppe'r .ends-to t-he bed spring adjacent the forward-end of the back rest and connected at their lower ends to a cross piece 53 on the bed frame. The coiled springs 52 maintain the desired tension in the bed spring and serve as a means for holding the spring in proper position when the back rest is. elevated.

As illustrated in Figure 1, spring arms 60 are connected to the forward portion of the limb rest and are bowed forwardly to prevent the bed coverings from becoming caught-beneath the limb rest.

`With reference to` the foregoing description taken in connection with the accompanying drawing, it will b e seen that a bed constructed in accordance with this invention will provide a comfortable means for supporting the patient in an inclined position and said back rest andi limb rest may be operated independently of each other.

Having thus described the invention, what claim as new and desire to secure by Letters Patent is z* l. A bed comprising a 4frame lhaving a pivoted back rest, elevating means connected to said back rest and located at the head of the bed, a knee rest pivoted tol the intermedlateportion of the bed, a knee rest operatingumember detachably connected to said elevating means and operated thereby, an.

auxiliary knee rest lifting rodhaving one end formed with attaching branches beneath said knee rest, a rod contact'member carried cated at one end of .the bed, a flexible by said knee: rest and arranged in the path of travel yof said rod, one end of said rod terminating at the foot of the bed, and a rod lifting member connected to said rod and the foot of the bed and adapted for' holding the knee rest in an adjusted position independently of saichback rest.

2, A bed comprising a frame having a pivoted back rest, elevating means connected to said back rest and located at the head of the bed, a knee rest pivoted to the intermediate portion of the bed, a knee rest operating member detachably connected to said elevating means and operated thereby, an auxiliary kneel rest lifting rod having one end formed with. attaching branches beneath said knee rest, a rod contact member carried by said knee rest.4 and arranged in the path of "travel of. said rod, one e-nd o-f said rod terminating at the foot of the bed, a rod lifting member connected to said rod and the foot of the bed and adapted for holding the knee rest in an adjusted position independently of said back rest, and a releasing device for disconnecting said knee rest operating member from said first named elevating means'.

3. A bed comprising a frame, a rest pivoted vthereto andi having a' bracket, an elevating rod having branches connected to said bracket, said rod having one end located at one end of the bed, a fiexible element connected to said rod and havinl means whereby the same may be adjustably connected to the bed for holding the rod 100 in a set position and a U-shaped contact member suspended from said rest and disposed inthe path of travel of said elevating rod and engaged by the intermediate portion of the same.

4. A bed comprising a frame, a rest pivoted thereto and having a bracket, an elevating 'rod having branches connected to said bracket, said rod having one end lo,

element connected toi-said rod and having means whereby the same may be adjustably connected to the bed for holding the rod in a set position, a U-shaped contact member suspended fromy said rest and disposed in the path of travel of said elevating rod and engaged by the intermediate portion of the same, and means carried by the forward endI of said rest and connected to the bed'for excluding said clothing from ,120 a space beneath the rest.

5. A bed comprising side rails, a limb rest pivoted `to said side rails, levers pivoted to said side rails and having rollers contacting with said limb rest, an operating rod having one end .portion forked to/ provide a pair of arms pivoted to said levers,'a cross head associated with said rod, means to adjust said cross head, a back rest having connection with said cross head, and

to said side rails and contacting with said limb rest, an operating rod pivoted to said levers, a cross head associated with said rod, means to adjust said cross head, a back rest having connection with said cross head, a latch for detachably connecting said rod to said cross head, and means associated with said latch for releasing the same, whereby the limb rest may be lowered independently of the back rest.

7. A bed comprising side rails, a limb rest pivoted to said side rails, levers pivoted to-said side rails and having rollers contacting with said limb rest, an operating rod connected to said levers, a cross head associated with said rod, means to adjust said cross head, a back .rest having connection with said cross head, a 'latch for detachably connecting said rod to said cross head, and means associated with said'latch for releasing the same, whereby the limb rest may be lowered independently of the back rest, and means for elevating said limb rest lndependently of the back rest.

8. A bed comprising side rails, a limb .rest pivoted to said side rails, levers pivoted to said side rails and provided with rollers contacting with said limb rest a rod having its forward portion forked to provide arms connected to said levers, a cross head associated with said rod, a latch carried by said cross head and adapted for detachably connecting the rod to said cross head, a

' back rest pivoted to said side rails, links connecting said back rest to said cross head, means to move said cross head longitudinally of 'said side rails, a U-shaped member pivoted to the forward portion of said limb rest, and an auxiliary lifting member connected to said U-shaped member and adapted'for elevating said limb rest independently of the back rest.

' JOHN GILBERT LAYCOCK. 

